The big lesson from Iowa: Security is only a starting point in protecting elections. Usability, reliability and redundancy are just as important as security. Iowa’s caucus app went out to users in a not-ready-for-prime-time test mode, which made it harder to install. The app recorded results correctly but then transmitted different numbers to the party HQ, thanks to what officials now admit was a “coding error” The system failures created an information void that opened fertile ground for conspiracy theories and influence operations.”]
Source: https://www.axios.com/2020/02/06/after-iowa-thinking-smarter-about-election-security